CN105477905A

CN105477905A - Fluid treatment apparatus

Info

Publication number: CN105477905A
Application number: CN201510970881.4A
Authority: CN
Inventors: N·E·兰格; K·W·泽韦林
Original assignee: VWS Westgarth Ltd
Current assignee: VWS Westgarth Ltd
Priority date: 2008-05-28
Filing date: 2009-04-22
Publication date: 2016-04-13
Anticipated expiration: 2029-04-22
Also published as: AU2009252981A1; BRPI0912146B8; BRPI0912146A2; AU2009252981B2; KR20110017394A; EP2280774A1; CA2725589A1; MY183535A; CN105477905B; CA2725589C; JP2015083302A; EP2280774B1; JP2011521780A; MX2010013017A; BRPI0912146B1; DK2280774T3; KR20160092056A; EP2572769B1; GB0809603D0; AR071919A1

Abstract

A fluid treatment apparatus (10) comprises a fluid vessel (12) having first and second fluid chambers (14, 16). A fluid inlet (26) is provided for delivering a fluid to be treated into the first fluid chamber (14). At least one nozzle assembly (34) is arranged between the first and second chambers (14, 16) to providing fluid communication from the first fluid chamber (14) to the second fluid chamber (16), wherein said nozzle assembly (34) is adapted to facilitate mixing of a gas with said fluid.

Description

Fluid treating plant

The application is the applying date is on April 22nd, 2009, and application number is 200980124891.9, the divisional application of the Chinese patent application that name is called " fluid treating plant ".

Technical field

The present invention relates to fluid treating plant, especially but non-exclusive, relating to a kind of equipment of the water for the treatment of producing from underground hydrocarbon formations.The present invention also relates to a kind of method processing fluid.

Background technology

From the mixture of the fluid normally Oil, Water, Gas body that underground liquid storage tank produces, be usually mixed with a certain amount of silt.The commitment produced, fluid may be " doing ", namely holds a small amount of water or does not contain water, but along with the continuation of producing, usually can produce more substantial water.In mature domain, produce the water of fluid ratio can reach 90%, and may about 95%.Liquid storage tank does not always produce a large amount of silt, but once such, silt output increases along with the increase of aquatic products amount usually.The water produced from liquid storage tank represents with term " recovered water ".

Recovered water can spray to be got back to stratum or can be excreted in environment.Such as, at greater coasting area, water can be excreted to marine.But recovered water must process up hill and dale, to remove all oil stain or gas substantially before being excreted to environment, to meet extremely strict environmental legislation.

In traditional production operation, from the extraction fluid of liquid storage tank by preliminary treatment to isolate in vendible oil and the never vendible water of gas and sand.But the water of separation still comprises oil and the gas of unacceptable amount usually, so, usually can accept after-treatment, further the concentration of hydrocarbon be reduced to acceptable level, so that be excreted to environment or spray is got back in stratum.

The process being called as " flotation " is commonly used to help to remove oil and other pollutants from water.The principle of flotation is: the foam of gas is introduced into (such as, induction flotation selects) or be contained in (such as, dissolved air flotation) comprise in the container of contaminant water, wherein, bubble will more or the lower pollutant that is attached to of low degree, such as oil droplet, and they is pulled to the surface of water, make a large amount of water no longer containing pollutant, and contain pollutant compared with the Shuifu County on upper strata.In follow-up discussion, the water that what bubble increased or produced be used for isolates each volume of pollutant can be described as " unit " or " flotation cells ".

Flotation is usually used as continuous print process operation, wherein, contaminant water continuously flows in unit, and the water being rich in pollutant aspirated from the superficial layer of unit flows out continuously, and flow out continuously with given pace from the water removing pollutant of unit, to keep water level constant substantially in a reservoir.

Usually, the pollutant floating to water surface is kept (be formed naturally when pollutant exists water surface with higher concentration, or time under the effect of chemicals adding incoming fluid to) with form of foam.Buoyant pollutant, such as oil droplet, can not need foam to occur to hold it in surface.

Pollutant on water surface can be removed by diverse ways, two kinds of prevailing methods are that cofferdam is arranged on below water surface slightly, make the superficial layer being rich in pollutant preferably flow through them, or the paddle on inswept for the superficial layer being rich in pollutant weir is arranged on the top of water surface slightly.Multiple floating equipment of skimming also is known, and its advantage is can than the change of the more wide region of the aforementioned fixed weir method tolerance operating fluid level adopted.

In induction flotation choosing (IGF) method, bubble is added in contaminant water by injector or mechanical mixer usually.IGF unit must be mixed to make bubble and pollutant such as oil droplet contact intimately, they can be separated by contaminated thing, but this mixing has side effect, it will make foam more be difficult to be raised to surface, and cause water bag residence time in the cells, which to change.Although the average residence time in unit can be determined by the flow velocity of the volume of unit and water, mixing means that part water bag is to pass through unit than the time of good separation required time much less, and the time that on the contrary, part water bag can be resident is in the cells, which more much longer than average residence time.

The necessity mixing to contact bubble and pollutant in the cells, which decreases the separative efficiency in unit.Because this reason, IGF container is common horizontal vessel, and it comprises the IGF unit of multiple series connection, typically is 4, to increase the gross efficiency be separated.The example of such known IGF system is shown in US4564457, US2006/0213840, US3972815, US3647069 and US5348648.

But in some applications, vertical single stage unit flotation element is known, and it has simple IGF unit, and this IGF unit has unit volume, thus a little bigger a little residence time can find in four unit of typical horizontal IGF element.The example of this IGF configuration at WO2004/112936 and US5,011, shown in 597.

Should be understood that, IGF element needs fluid to reside in the cycle enough in container, to allow being separated of oil flotation and gas.But the residence time of increase directly can reduce obtainable maximum fluid processing speed.Can solve this problem by the size increasing IGF element, but this not expect, because limit by the free space of conventional production environment.

Expect to reduce the space occupied by equipment be arranged on offshore platform, and the weight of equipment, and because this reason, compact flotation element is suggested in the prior art, so that with minimum equipment area of coverage process recovered water.Such as, prior art document WO02/41965 discloses the container of arranged perpendicular, and its fluid intake via tangential configuration receives pending fluid.Fluid establishes the rotation of fluid in container by this way, and this just contributes to oil and the joint of bubble and flotation to surperficial.Container can introduce the directing vane of screw, rotates with enhance fluid.

In WO02/41965, container, with low voltage operated, to allow dissolved gases progressively to be formed from aqueous phase, and produces bubble in the region closing on fluid intake, to imitate the effect of IGF element.But if the gas of volume is present in fluid not, so additional gas can add in fluid.

EP1400492 also discloses a kind of compact flotation element, and it comprises the container with one or more shearing fluid intake of arranged perpendicular, to promote fluid rotation.In EP1400492, container also comprises the fluid/gas jet entrance shearing configuration.The water of gasification passes in container by these entrances.

Comprise overlapping flotation skill by the skill using bubble to process fluid, wherein, pending fluid enters in container through injector in an overlapping arrangement.The example of this skill is disclosed in US1311919, US1380665 and US4406782.

US4,986,903 disclose a kind of floatation equipment for separating oil from water.Disclosed equipment comprises gasification separately and degas chamber.Gasified water is introduced in vaporizer via gas ejector.Fluid to be gasified likely is recycled by recirculating line 70 and gas ejector 40 between degas chamber and vaporizer.

Target of the present invention eliminates or alleviates one or more problem of the prior art.

Summary of the invention

According to a first aspect of the invention, provide a kind of fluid treating plant, it comprises: fluid container; Be limited to the first and second fluid chamber in fluid container; Be used for pending fluid to be sent to the fluid intake of first fluid room; And at least one nozzle assembly, it provides and is communicated with from first fluid room to the fluid of second fluid room, and wherein, described nozzle assembly is suitable for promoting gas and described fluid chemical field.

This at least one nozzle assembly can be beneficial to gas and be entrained into described fluid.Alternatively or additionally, this at least one nozzle assembly can be convenient to spray, mixing or gas is sent into described fluid.But in order to simplify summary of the invention of the present invention, the usual concept mixing or gas is sent into pending fluid of gas and pending fluid is usually expressed as carries secretly.

This equipment is suitable for the fluid of pack processing containing multiple composition, and wherein, composition can comprise any one liquid, gas and solid and their combination.Such as, fluid can comprise water/oil mixture, water/oil/gas mixture or analog.

First fluid room can be suitable for receiving pending fluid, and by this fluid and be gas-entrainedly assigned to second fluid room, with at this indoor process fluid.Therefore first fluid room can limit distributor chamber, and the second Room can limit process chamber.

Second process chamber can be suitable for the separating treatment of containing fluid.Separating treatment can be suitable for the separation affecting fluid composition, such as the composition of variable concentrations, chemical characteristic, phase place etc.Advantageously, be entrained into the fluid entering the second Room can enhance fluid be separated.Process of the present invention can comprise FLOTATION SEPARATION process.

In one embodiment, second fluid room can be suitable for adapting to separating treatment, to affect mineral oil and arbitrary gas being separated in water, the water such as produced by hydrocarbon subterranean liquid storage tank.In this configuration, the liquid that gas is entrained into from first fluid room can contribute to oily flotation.Oil can be bypassed or be removed from the surface of water in second fluid indoor.Additionally, the gas discharged from water can be collected.

Advantageously, at least one nozzle assembly is provided so that gas is entrained into pending fluid can eliminate the demand providing external equipment, such as relevant to prior art arrangement gasifier, blender, pump, compressor etc.But, in an embodiment of the present invention, may wish to use this outside or optional equipment.In addition, at least one nozzle assembly can be suitable for the fluid being mixed with gas to be communicated to second fluid room.Therefore, the residence time of fluid in the second indoor can intactly be used for processing fluid substantially, such as, carry out the separation of composition in fluid.Thus, this is different from the configuration of prior art.In the prior art, residence time must adapt to enough gas/fluid mixing.

Fluid container can vertically configure.This configuration can contribute to the area of coverage of minimize fluid treatment facility, and this is especially favourable in offshore application.Can alternatively, fluid container can flatly be arranged.Further alternatively, fluid container tiltable is arranged.

First and second fluid chamber can be arranged to adjacent one another are in container.Can alternatively, the first and second Room can be arranged in container separatedly.First and second fluid chamber vertically can arrange in container.In other words, room can be arranged in the top of another room at least in part.In one embodiment, the first Room can be arranged in the top of a second Room part at least in part.This just can be convenient to fluid gravity feed between the chambers.

Alternatively or additionally, the first and second Room can flatly be arranged in container.In other words, room can be arranged in the side of another room at least in part.

Equipment can comprise the dividing plate being suitable for separating the first and second Room at least in part.Container can be divided at least the first and second fluid chamber by dividing plate.Dividing plate can comprise plate or analog, and can have any suitable shape, such as automatic adjustment, annular, square, rectangle etc.Dividing plate can be fastened to the inner surface of container, such as, by welding, Flange joint, bolt, interference engagement etc., or their any proper combination.Dividing plate can be formed as single part, or can be formed by multiple parts.

Dividing plate can limit one or more border of wall portion or the first and second Room.Dividing plate limits the bottom of one or two room.Dividing plate can limit top or the upper area of one or two room.In one embodiment of the invention, dividing plate can limit the bottom of the first Room or the top of the second Room.

At least one nozzle assembly can be adapted to extend through dividing plate.This at least one nozzle assembly can be fastened to dividing plate, makes dividing plate be that at least one nozzle assembly provides support.

This at least one nozzle assembly can comprise the first fluid pipeline limiting fluid port, and this port is suitable for allowing pending fluid to be communicated to first fluid pipeline from first fluid room.Fluid port can be set in the bottom section of first fluid room.Can alternatively, fluid port can be set in the raised position of the bottom section relative to first fluid room.In this arranges, the raised position of fluid port can allow nozzle assembly to be only exercisable when the predetermined head of pending fluid is present in first fluid room.This layout can contribute to the flow range allowing to obtain between preferred flow velocity and the first and second Room.First fluid pipeline can wholely be contained in container.Can alternatively, the outside that may extend into container at least partially of first fluid pipeline.

This at least one nozzle assembly can comprise second fluid pipeline, and this second fluid pipeline is suitable for allowing the gas from source of the gas to be communicated to nozzle assembly at least partially.Like this, the gas from source of the gas can be entrained into pending fluid.

Source of the gas can comprise the gas be contained in container, and can comprise the gas being contained in the first and second fluid chamber in one or two.In this configuration, second fluid pipeline can limit the fluid port gas of one or two in the first and second fluid chamber being full of to region openings.Gas can comprise the gas from pending release of fluid.Can alternatively, gas can comprise the gas provided from external source.

Second fluid pipeline directly can be connected to external air source.

Second fluid pipeline can wholely be included in container.Can alternatively, the extensible at least partially outside at container of second fluid pipeline.

At least one nozzle assembly can comprise the excretory duct be communicated with one or two fluid in the first and second fluid circuits.The fluid that can contribute to transmitting via first fluid pipeline at least partially and the gas and vapor permeation transmitted via second fluid pipeline or the fusion of excretory duct.In this arranges, the disorder in excretory duct and mix and gas configuration can be become minute bubbles, and mix with making these bubbles and the fluid in close from the first Room.Therefore fluid can be sent into the second Room by nozzle assembly, and this second Room comprises favourable bubble distribution, so that carry out follow-up fluid treatment in the second indoor.

Excretory duct can limit the fluid issuing to second fluid room opening, is excreted to described second Room to allow gas and fluid mixture.The fluid issuing of excretory duct can be suitable for being immersed in second fluid indoor at least in part.

Excretory duct can be arranged to any region fluid being entered the second Room.In one embodiment, excretory duct can be configured to perimeter fluid being entered the second Room.

Excretory duct can be oriented to and allows fluid and admixture of gas to drain into the second Room with predetermined direction.This layout can contribute in the preferred fluid motion of the indoor foundation of second fluid.In one embodiment, excretory duct can be arranged to set up rotational flow in the second indoor.Rotational flow can be set up relative to the central axis of the second Room.The rotational flow of second fluid indoor can help fluid treatment in the inner.Such as, rotational flow can help the preferred movement of the bubble in pending fluid, the preferred movement being drained into the fluid composition of the insult area of the second Room etc.Rotary motion can extrude the forward direction mixing (in other words, the prematurity excretion of pending fluid) of processed fluid to outlet, and can improve residence time distribution.

Excretory duct can relative to the central axis of the second Room (namely non-parallel) layout obliquely.Excretory duct is tiltably arranged to fluid to enter in the perimeter of the second Room, advantageously in described second indoor startup rotational flow.Excretory duct can be suitable for the First Speed component draining off fluid with parallel second fluid room, and with second speed component (circle of namely consistent with container center axis round dot the is tangent) draining off fluid perpendicular to central axis.

Equipment can comprise multiple nozzle assembly.At least one of multiple nozzle assembly can be similar at least one above-mentioned nozzle assembly.

Nozzle assembly can relative to first fluid room with loop configurations.But, other can be used to configure.Such as, nozzle assembly can be arranged to the peripheral profile meeting container substantially, and it may not be round.

Each nozzle can be suitable at first fluid indoor with fluid header range operation identical substantially.Such as, each nozzle assembly can comprise the fluid port being suitable for allowing to be communicated with the fluid-phase being contained in first fluid indoor, and wherein fluid port can relative to the bottom section of first fluid room with height placement identical substantially.Therefore, when the head of first fluid indoor and fluid levels drop under the level of fluid port, it is invalid that all nozzles will be classified as, till enough heads are re-established.

Can alternatively, at least one of multiple nozzle assembly can be suitable at first fluid indoor with at least another the fluid header operation being different from multiple nozzle assembly.Such as, at least two nozzle assemblies can comprise respective fluid port, and it is suitable for allowing to be communicated with the fluid being contained in first fluid indoor, and wherein, fluid port can be arranged with different relative altitudes relative to the bottom section of first fluid room.Therefore, in this arranges, if the fluid header of first fluid indoor starts to decline, such as reduced by the flow velocity of entrance, nozzle assembly is then invalid by being classified as according to the height of respective fluid port.Therefore this layout can be used maintain the favor speed scope being entered the fluid of second fluid room by nozzle assembly.Can flow needed for second fluid indoor and select favor speed scope.In this arranges, can contribute to, at the preferred flow pattern of the second indoor maintenance (such as, rotation), this reduces by the changes in flow rate effect of entrance to the first Room for providing control to a certain degree in whole velocity interval.

Also optionally select preferred velocity interval to maintain the ratio and their mixing that are entrained in gas in fluid, and this mixing occurs in excretory duct with predetermined value.

Equipment comprises the deflector means being placed in the second indoor alternatively.Deflector means can be configured to the forward direction mixing of the fluid minimizing the second indoor.Deflector means can be placed near the wall surface of the second Room.Deflector means can be positioned at the region of at least one nozzle assembly.Deflector means can be configured to make to attach offset from nozzle assembly at the fluid of wall.

Deflector means can limit continuous print fluid baffles in interested region.Can alternatively, deflector means can limit discrete baffle plate.This can allow solid particle and can be gathered in the analog release in deflector means.Deflector means can comprise hole or analog.One or more hole can be limited in the surface of deflector means.One or more hole can be limited between the edge surface of deflector means and the wall of the second Room.

Deflector means can be adjusted to the wall being essentially perpendicular to the second Room.Deflector means can be alignd obliquely relative to the wall of the second Room.

Fluid passage can be set between the first and second Room to allow fluid to be communicated with between the chambers, is preferably communicated with in the two directions.Fluid passage can be contained in container.Can alternatively or additionally, the extensible outside at container of a part of fluid passage.Fluid passage can be suitable for allowing fluid to be communicated with gas between the first and second Room.In one embodiment, fluid passage can be suitable for allowing fluid to be communicated with the gas entering first fluid room from second fluid room.This gas can comprise the gas of the just processed release of fluid from the second indoor.Can alternatively or additionally, gas can comprise the gas from external source supply.Fluid passage can be communicated with by gas, solid or the analog alternatively or be additionally suitable between the first and second fluid chamber.

Fluid passage with container center ground or can be arranged concentrically.Single fluid passage can be set, or set multiple fluid passage.Fluid passage can extend through the dividing plate of separation first and second Room.Fluid passage can be limited by the wall extended from the surface of dividing plate.In this arranges, wall can limit the annular region of the inner wall surface with first fluid room, and wherein said annular region is suitable for the pending fluid being received from vessels fluid inlet.At least one nozzle assembly can be placed in annular region.

First fluid room can comprise dispenser assembly, and this dispenser assembly is suitable for receiving the fluid entering the first Room via fluid intake.Dispenser assembly can be suitable for dispersing the momentum introducing fluid.Dispenser assembly can be suitable for fluid dispersion, at least one nozzle assembly, minimizing turbulent flow simultaneously.Dispenser assembly can comprise and is suitable for receiving from the box structure of the fluid of fluid intake.Box structure can comprise the punched areas allowing fluid from described fabric connectivity.

Equipment can comprise one or more fluid issuing and discharge from container to allow the fluid after processing or fluid composition.Fluid issuing can be set in one or two in the first and second fluid chamber.In one embodiment, equipment can comprise first fluid outlet, and the outlet of this first fluid is suitable for the major part allowing first fluid (such as liquid) composition, and such as water is discharged.First fluid outlet can be placed in the second indoor, and can be placed in the lower area of the second Room.

Equipment can comprise second fluid outlet further, and the outlet of this second fluid is suitable for the major part allowing second fluid (such as liquid) composition, and such as oil is discharged.Second fluid outlet can be placed within second fluid room, and second fluid outlet can be placed in the upper area of the second Room, or alternatively or additionally can be placed in the lower area of fluid chamber, and/or be placed in any position between lower area and upper area.

Equipment can comprise the 3rd fluid issuing further, and the 3rd fluid issuing is suitable for the major part of permission the 3rd fluid (such as gas) composition, and such as the hydrocarbon gas is discharged.3rd fluid issuing can be placed within first fluid room, and can be placed in the upper area of the first Room.

At least one fluid issuing can comprise device, and this device is suitable for eliminating substantially or at least minimizing the eddy current flowing through this device.

Equipment can comprise float skimming device further, and this float skimming device is suitable for skimming composition from just processed flow surface.The composition skimmed can comprise oil.Traditional float skimming device can be used.

Second fluid room can be suitable for receiving fluid from first fluid room.Therefore, in this arranges, the pending fluid of whole volume flows through first fluid room.Can alternatively, second fluid room can be suitable for receiving fluid from another source.

The processed connection of fluid between the first and second fluid chamber exclusively obtains by least one nozzle assembly.Can alternatively, fluid is communicated with and can obtains additionally by additive method.

At least one nozzle assembly can allow the additive of fluid treatment agent to enter processed fluid, and this fluid treatment agent can comprise PH averager, flocculating agent or analog.

At least one nozzle assembly can comprise injector.

This container can comprise the single container containing the first and second fluid chamber.Container can comprise closed container.Can alternatively, container can comprise open-top receptacle, such as open top, make container can be exposed to ambient air at least partially under.

Equipment can comprise and is suitable for receiving three fluid chamber of fluid for further process from second fluid room.Be communicated with can provide via at least one nozzle assembly from second fluid room to the fluid of the 3rd fluid chamber.

According to a second aspect of the invention, provide a kind of method processing fluid, described method comprises following step: limit the first and second fluid chamber; Pending fluid is sent into first fluid room; By being suitable at least one nozzle assembly of described fluid and gas and vapor permeation from first fluid room effluent fluid; And fluid is drained into second fluid room from least one nozzle assembly, so that in the indoor process further of second fluid.

Fluid in the second indoor process, and can be discharged from this room subsequently, wherein gas at least one nozzle with fluid mix the subsequent treatment be convenient to or contributed in second fluid indoor.Flotation process can be set in second fluid indoor.

Being used for the equipment of manner of execution can be set in the equipment according to first aspect, and the method for operating said equipment should be understood to be applied to according to method of the present invention.

According to a third aspect of the invention we, provide a kind of fluid treating plant, it comprises: first fluid room; Second fluid room; For pending fluid being conveyed into the fluid intake of first fluid room; And at least one nozzle assembly extended between the first and second fluid chamber, to provide the fluid between first fluid room and second fluid room to be communicated with, wherein, described nozzle assembly is suitable for promoting mixing of gas and described fluid.

First fluid room and second fluid room can be set in single container.Container can be closed or can alternatively can open wide to air.Can alternatively, the first and second fluid chamber can be limited in each container.One of them container can be closed.One of them container can open wide to air.

According to a forth aspect of the invention, provide a kind of fluid treating plant, it comprises: be suitable for the fluid processing receptacle receiving pending fluid from fluid source; Be set at least one nozzle assembly between fluid processing receptacle and fluid source, wherein, fluid from fluid source is suitable for before entering fluid processing receptacle, flow through at least one nozzle assembly, and wherein, at least one nozzle assembly is suitable for gas and fluid chemical field.

Therefore, the fluid of whole volume before entering fluid processing receptacle with gas and vapor permeation.Thus, the residence time of fluid in fluid processing receptacle can wholely be used for processing fluid.This and the prior-art devices performing gas and vapor permeation in fluid processing receptacle are different.

According to a fifth aspect of the invention, provide a kind of for by the spray nozzle device of pending fluid distrbution between first fluid room and second fluid room, described spray nozzle device comprises: first jet assembly, it comprises the first fluid pipeline extended between the first and second fluid chamber, and wherein first fluid pipeline comprises the first fluid port providing and be communicated with first fluid room; And second nozzle assembly, it comprises the second fluid pipeline extended between the first and second fluid chamber, and wherein second fluid pipeline comprises the second fluid port providing and be communicated with first fluid room; Wherein, the first and second fluid ports have different height relative to the bottom of first fluid room, so that indoor with different fluid header range operation first and second nozzle assemblies at described first fluid.

This layout thus the favor speed scope of the fluid being assigned to second fluid room can be allowed, and no matter enter the flow velocity of the liquid of first fluid room.

First and second nozzle assemblies can be suitable for promoting mixing of gas and described fluid.First and second nozzle assemblies can promote that gas is conveyed into described fluid.

Each of first and second nozzle assemblies can comprise further fluid circuit, and this fluid circuit is suitable for allowing the gas from source of the gas to be communicated to a part for each nozzle assembly.

Each of first and second nozzle assemblies can comprise the excretory duct of the fluid issuing being limited to second fluid room.The excretory duct of the first and second nozzle assemblies can be arranged to set up rotational flow in the second indoor.

Should be understood that, although described different aspect of the present invention, the feature relating to an aspect may be used on other aspects one or more.

Accompanying drawing explanation

Complete and disclosing of can implementing of the present invention, comprises the optimal mode to those skilled in the art, is especially proposed at the remainder of description, comprises with reference to accompanying drawing, wherein:

The example described referring now to additional patterns describes these and other aspects of the present invention, wherein:

Fig. 1 attempts according to the longitudinal cross-section of the fluid treating plant of the embodiment of the present invention;

Fig. 2 is that the lateral cross of equipment in upper chamber region is attempted;

Fig. 3 is that the amplification of the entrance area of the equipment shown in Fig. 1 is attempted;

Fig. 4 is that the figure of expected flow pattern in the equipment of Fig. 1 represents;

Fig. 5 is the viewgraph of cross-section of nozzle assembly according to an embodiment of the invention, and this nozzle assembly is suitable for being used in the equipment of Fig. 1;

Fig. 6 is the viewgraph of cross-section of the nozzle assembly according to alternative of the present invention, and this nozzle assembly is suitable for being used in the equipment of Fig. 1; And

Fig. 7 represents according to the figure of the fluid treating plant of alternative of the present invention.

Detailed description of the invention

First Fig. 1 and Fig. 2 in reference pattern, illustrated therein is the viewgraph of cross-section of the fluid treating plant according to the embodiment of the present invention, and it usually represents with reference number 10.Equipment 10 represents with longitudinal cross-section in FIG, represents in fig. 2 with lateral cross.Fluid treating plant 10 can be used in multiple application.But in the present embodiment, equipment 10 is used for processing the water from comprising the gentle underground liquid storage tank generation of oil.As hereafter further described, equipment 10 is suitable for being separated gentle for oil from recovered water by flotation isolation.Thus equipment 10 can be described to compact flotation element (CFU).

Equipment 10 comprises vertically arranged generic cylindrical container, and it limits first or upper fluid chamber 14 and second or lower fluid chamber 16.The dividing plate 18 that upper and lower fluid chamber is secured to the inner wall surface of container 12 separated.Dividing plate limits the upper bottom of room 14 and the top of lower room 16.

Fluid passage 20 extends between upper and lower room 14,16, and is limited by the wall portion 22 upright from dividing plate 18.Wall portion 22 limits region or the passage 24 of annular substantially together with the inner wall surface of container 12 in upper room 14.As further discussed in detail, fluid passage 20 allows gas to be communicated with between upper and lower room 14,16.

Fluid intake is formed in the sidewall of container 12, and in use pending recovered water is sent into upper fluid chamber 14, and especially annular region 24.Dispenser assembly 28 to be set in room 14 and to be arranged to receive the recovered water entered via entrance 24.In fig. 2 and the dispenser assembly 28 clearly illustrated in the zoomed-in view of Fig. 3 has the form of the case limited by the inner wall part of dividing plate 18, wall portion 22, container 12, porous side plate 30 and solid cover (only shown in Figure 3).Thus, first the recovered water entering upper room 14 via entrance 26 will be received into dispenser assembly 28, then be assigned to border circular areas 24 by porous side plate 30.Dispenser assembly 28 is used for dispersing the momentum introducing recovered water, and with minimum disturbance, these is assigned to annular region 4, prevents or minimizes water and neglected the risk spraying or leak into lower room 16 by passage 20.

Equipment 10 comprises multiple nozzle assembly or injector 34 further, and the recovered water that this injector 34 is the annular region 24 from upper room 14 provides fluid to be communicated with to lower room 16.Thus, upper room 14 receives recovered water via fluid intake 26, and is then assigned to lower room 16 by nozzle assembly 34.Then recovered water stands flotation process in lower room 16.Therefore, upper fluid chamber 14 can limit distributor chamber, and lower fluid chamber can limit process chamber.

Each nozzle assembly 34 is convenient to gas and is entrained into the recovered water flowing through nozzle assembly.Gas is entrained into from the head zone 36 of upper room 14, and entrained gas is configured to minute bubbles with mixing by the disorder in each nozzle assembly 34, and these bubbles were coordinated nearly with recovered water before recovered water is excreted to lower room 16.Thus, recovered water is sent into lower room 16, so that follow-up fluid treatment with the favourable bubble distribution that obtains by nozzle assembly 34.This is favourable by it, because the follow-up residence time of water in lower room 16 can exclusively use, so that flotation process and being separated in water with gas by oil.These are obviously different with the device of prior art, and in prior-art devices, the mixing of gas occurs in flotation cell, and thus residence time must adapt to gas and vapor permeation and FLOTATION SEPARATION.

The form of nozzle assembly 34 will hereafter discussed in more detail.

Once recovered water enters lower room 16, water will start to be separated with oil naturally, and oil is tending towards the surface floating to water.Well distributed in recovered water of bubble enhances this separating effect, because bubble adhesion is to the oil droplet in water, and contributes to joint and the flotation of oil.Once arrive the surface of water, bubble will be discharged into the upper area 90 of lower room 16, and is flowed into the head zone 36 of upper room 14 by passage 20 subsequently.Therefore, head zone 36 can be supplemented, to maintain the gas of enough volumes, to be entrained in the recovered water of introducing by nozzle 34 from the gas of recovered water release.

Equipment 10 comprises the first outlet 38 further, is suitable for the discharge promoting process water in its lower area being formed in lower room 16.Baffle plate 40 and vortex breaker 42 are also present in the lower area of lower room 16, and are suitable for preventing bubble from draining together with process water exporting 38 by first.As shown in Figure 1, baffle plate 40 is placed on container 12 concentrically, and has the diameter of 80% to 95% of the interior diameter being approximately container 12.

Skimming equipment 44 is set in the upper area of lower room 16, and is suitable for bypassing oil from the surface of water.Skimming oil is discharged by pipe 46, and discharges eventually through the second outlet 48 on the dividing plate 18 be formed in the side of container.Container 12 is greater than the force value of atmospheric pressure slightly by advantageously maintaining, to drive skimming oil upwardly through pipe 46, towards the second outlet 48.Can be undertaken collecting and processing by demand spontaneously.In alternative arrangements, pipe 46 down can extend from skimming equipment 44, and by the outlet excretion in the lower area of container 12, such as, discharges from the bottom section baffle plate 40.

Skimming equipment 44 is self-balancings, makes skimming region, top 50 be maintained at precalculated position relative to the water surface/pasta in lower room 16, to keep effective skimming of oil.

3rd outlet 52 is set in the upper area of room 14, and allows the gas in head zone 36 to discharge from container 12.Gas can be collected, dodge burning, recirculation etc.Outlet 52 also can play entrance effect, is fed to container 12 to allow gas.

In the present embodiment, nozzle 34 comprises excretory duct 54, and this excretory duct 54 is partly immersed in the recovered water in lower room 16, and arranges with shared direction, to drip downwards relative to container 12 and circumferentially to discharge recovered water.This layout affects the rotation of water in lower room 16, and this just advantageously helps fluid treatment in the inner, provides preferred bubble motion in fluid, and by oil float to skimming equipment 44.Equally, the rotation of recovered water helps anti-sealing through lower room 16, and can not be allowed for the enough time of bubble and oil droplet, to be separated from water.

Be integrally formed on the wall that the deflector means existed with ring baffle 55 form at random can be fastened on lower room 16 in the region under the excretory duct 54 of nozzle assembly 34 or with the wall of lower room 16.In use, baffle plate 55 makes the downward velocity component of fluid minimize, and the forward direction mixing to help fluid minimizes.

Although fail to illustrate, baffle plate 55 comprises multiple hole being arranged to allow any solid matter (can being gathered in the upper surface of baffle plate) to discharge.

With reference now to the Fig. 4 in figure, the figure that the figure shows the expected flow pattern in container 12 represents.Illustrate that the left-hand side of container 12 in fig. 2 illustrates the water Secondary Flow pattern of expection, and right-hand side shows the expection bubble track in lower room 16.Should be understood that, in order to clear, do not describe the principal rotating motion of fluid around the longitudinal axis of container 12 in the diagram.In addition, the alternative ring baffle 55 shown in Fig. 1 is not illustrated in the diagram.

Traverse cycle loop 60 (loop 1) is driven by the air pocket 62 being raised to surface fast of discharging from nozzle assembly 34.Closed circuit 60 be sure of that flowing on liquid surface is towards skimming assembly 44, and the oil 64 that is separated can be carried this side up.Longitudinal closed circuit 66 (loop 2) by the liquid boundary layer 68 on baffle plate 40 to flow driving.Closed circuit 66 catches minute bubbles 70 (having downward track outside main current), and by minute bubbles Yong Xiang center, then up catches towards surface to be recycled loop 60.Thus, minute bubbles 70 have to pass through closed circuit 60, finally to arrive surface, and/or are attached to larger bubble.

The detailed description of nozzle assembly 34 shape is described with reference to Fig. 5, and wherein, nozzle assembly 34 shows cross sectional view.Assembly 34 comprises first fluid pipeline 72, and this pipeline 72 upwards extends and limits fluid inlet port 74.The excretory duct 54 being fastened to inclination compared with low-end of the first pipeline.First fluid port 74 allows the recovered water in annular region 24 (see Fig. 1) to flow into the first pipeline 72, thus enters excretory duct 54.Flange 78 is fastened to first fluid pipeline 72 and allows nozzle assembly 34 to be fastened to the dividing plate 18 (see Fig. 1) separating upper and lower room 14,16.

Assembly 34 also comprises the second fluid pipeline 80 extending through first fluid pipeline 72.Second fluid pipeline 80 limits the upper fluid port 82 (see Fig. 1) opened wide to head zone 36.Second pipeline 80 be unlimited in the region of excretory duct 54 compared with low-end.

Therefore in use, the water flowing through first fluid pipeline 72 will make gas be entrained into from head zone 36 from second fluid pipeline 80, and then mix in excretory duct 54, thus the bubble distribution established before entering lower room 16 by outlet 48.

The height of the fluid port 74 of first fluid pipeline 72 is by the fluid header in instruction annular region 24, and it is required that this is that nozzle assembly 34 operates.This exercisable head can change, and preselected by the providing of extension 86 of Len req that be fastened to or be integrally formed with first fluid pipeline 72.Such as, the operated head of nozzle assembly 34 can in the region of 400-500 millimeter.

In one embodiment of the invention, exercisable head can be equivalent for all nozzle assemblies 34 be set in equipment.But in an alternative embodiment, arrange respective fluid port 74 by upper at various height, one or more nozzle assembly 34 can have different operation heads.Thus, in this arranges, if the fluid header in the annular region 24 of upper room 14 or level start to decline, such as cause because being lowered by the flow velocity of entrance 26, it is invalid that height according to respective fluid port 74 is classified as by nozzle assembly 34 then, until entering the flowing coupling of the second Room 16 through the manipulating nozzles assembly 34 reducing number till entrance 26 enters the flowing of annular region 24.Thus this configuration can be used to the favor speed scope maintaining draining off fluid (entering second fluid room 16 by the outlet 84 of excretory duct 54).Preferred velocity interval can be selected according to flowing needed in second fluid room 16.Such as, the rotational flow of lower indoor can necessarily be set up and maintain to the scope of fluid-evacuation speed.Also optionally select preferred velocity interval to maintain the ratio being entrained in gas in fluid, and maintain the mixing occurring in fluid in excretory duct and gas in preferred value.

The alternative that can be used for the nozzle assembly 34a of equipment 10 first shown in Fig. 1 is shown in Figure 6, with reference now to Fig. 6.The assembly 34a of Fig. 6 is similar to the assembly 34 in Fig. 5, and thus, identical parts share identical reference number, but below and then alphabetical " a ".As noted, nozzle assembly 34a is similar to assembly 34, therefore comprises the first fluid pipeline 72a limiting fluid port 74a and the second fluid pipeline 80a limiting fluid port 82a.But, in this embodiment, in the head zone 90 of the downward room 16 of fluid port 82a of second fluid pipeline 80a, open wide (see Fig. 1).Thus, the gas from head zone 90 can be carried secretly by the recovered water in excretory duct 54a and mix with it before entering lower room 16 via outlet 84a.Although be not illustrated, nozzle assembly 34a can comprise extension, and it is similar to the pipe 86 of Fig. 5 example shown.

Fluid treating plant according to alternative of the present invention is described with reference to Fig. 7.The fluid treating plant usually represented with reference number 110 is similar to the equipment 10 shown first in Fig. 1, and similarly, identical feature shares identical reference number, and increases by 100.

Thus equipment 110 comprises container 112, and in this case, container 112 is horizontally disposed.The first and second fluid chamber 114,116 isolated by dividing plate 118 are limited in container 12.Fluid passage 120 is set between the first and second fluid chamber 114,116, to allow gas passing through between which.Recovered water is sent into the first Room 114 by fluid intake 126, and multiple nozzle assembly 134 setting is used for allowing the recovered water from the first Room 114 to be communicated with, and sends into the second Room 116.Nozzle assembly 134 is convenient to gas and is entrained in recovered water in the head zone 136 of the first Room 114 or in the head zone 90 of the second Room 116.Thus, this is arranged in recovered water, provide bubble before recovered water is discharged into the second Room 116 good mixing and distribution.

Recovered water then can in the second Room 116 resident a period of time, make the gas in water and oily floatability to the surface of water, simultaneously water with substantially upper left-move to the direction on-right side.Perforated retainer 92, preferably at least two, is set in the second Room 116, to suppress the reverse mixing of water.

The process water considerably reducing gas and oil content can be discharged via the first outlet 138.Floating oil is bypassed by the surface of skimming assembly 144 from water, and discharges via the second outlet 148 subsequently.The gas discharged in water can be discharged via the 3rd outlet 152.

Should be understood that, embodiment described herein is exemplary, and can make different improvement without departing from the present invention.Such as, above-mentioned feature of the present invention can be used for the situation setting the first and second Room in a separate container.In this arranges, by pending water is passed nozzle assembly, to enter second fluid room for the treatment of the mixing obtained in water before and bubble distribution at water, still can obtain benefit of the present invention.In other embodiments, the first Room can without the need to fluid, and the fluid come from source can directly be fed at least one nozzle assembly, to be discharged into fluid treatment chamber.

In addition, in the embodiments described, different pipelines and path setting are also positioned at the inside of container.But this pipeline and passage can extend whole or at least in part in container.

In addition, equipment can comprise the 3rd fluid chamber, and the 3rd fluid chamber is suitable for receiving fluid from second fluid room, further to process.Be communicated with can provide via at least one nozzle assembly from second fluid room to the fluid of the 3rd fluid chamber.

In addition, can be provided by external source by the gas of pending fluid carry-over.

Container can open wide to air.

Although nozzle assembly is arranged to gas to be entrained into processed fluid, in an alternative embodiment, at least one be suitable for permission gas of nozzle assembly is ejected into or is sent in pending fluid.

Claims

1. a fluid treating plant, comprising:

Fluid container;

Be limited to the first and second fluid chamber in fluid container;

Be used for pending fluid to be sent to the fluid intake of first fluid room; And

At least one nozzle assembly, it provides first fluid room to be communicated with to the fluid of second fluid room, it is characterized in that, described nozzle assembly is suitable for promoting gas and described fluid chemical field.

2. fluid treating plant according to claim 1, is characterized in that, at least one nozzle assembly described is beneficial to gas and is entrained into described fluid.

3. fluid treating plant according to claim 1 and 2, is characterized in that, second fluid room can be suitable for the separating treatment of the fluid held in it.

4. the fluid treating plant according to claim 1,2 or 3, comprises the dividing plate being suitable for separating first fluid room and second fluid room at least in part further.

5. fluid treating plant according to claim 4, is characterized in that, at least one nozzle assembly described is adapted to extend through dividing plate.

6. according to fluid treating plant in any one of the preceding claims wherein, it is characterized in that, at least one nozzle assembly described comprises the first fluid pipeline limiting fluid port, and this fluid port is suitable for allowing pending fluid to be communicated to first fluid pipeline from first fluid room.

7. fluid treating plant according to claim 6, is characterized in that, described fluid port is set in the raised position of the bottom section relative to first fluid room.

8. the fluid treating plant according to claim 6 or 7, is characterized in that, at least one nozzle assembly described comprises second fluid pipeline, and this second fluid pipeline is suitable for allowing the gas from source of the gas to be communicated to a part for nozzle assembly.

9. fluid treating plant according to claim 8, is characterized in that, described source of the gas comprises the gas be contained in container.

10. fluid treating plant according to claim 8 or claim 9, it is characterized in that, described source of the gas comprises the gas from pending release of fluid.

Fluid treating plant described in 11. according to Claim 8 or 9 or 10, is characterized in that, described source of the gas comprises the gas provided from the outside of container.

12., according to fluid treating plant in any one of the preceding claims wherein, is characterized in that, at least one nozzle assembly described comprises excretory duct, and this excretory duct limits the fluid issuing opening to second fluid room opening.

13. fluid treating plants according to claim 12, is characterized in that, described excretory duct can be configured to set up rotational flow in the second indoor.

14. according to fluid treating plant in any one of the preceding claims wherein, comprises multiple nozzle assembly.

15. fluid treating plants according to claim 14, is characterized in that, at least one of described multiple nozzle assembly can be suitable at first fluid indoor with at least another the fluid header operation being different from multiple nozzle assembly.

16. according to fluid treating plant in any one of the preceding claims wherein, comprises the fluid passage between the first and second Room further, is communicated with between the chambers to allow fluid.

17. fluid treating plants according to claim 16, is characterized in that, the fluid that described fluid passage is suitable for allowing gas to enter first fluid room from second fluid room is communicated with.

18. fluid treating plants according to claim 16 or 17, it is characterized in that, described fluid passage extends through the dividing plate of separation first and second Room.

19. fluid treating plants according to claim 18, is characterized in that, described fluid passage is limited by the wall extended from the surface of dividing plate.

20. fluid treating plants according to claim 19, is characterized in that, described wall limits the wall portion of the first Room.

21., according to fluid treating plant in any one of the preceding claims wherein, comprise dispenser assembly further, and this dispenser assembly is suitable for receiving the fluid entering the first Room via fluid intake.

22. according to fluid treating plant in any one of the preceding claims wherein, comprises one or more fluid issuing further, discharges from container to allow the fluid after processing or fluid composition.

23., according to fluid treating plant in any one of the preceding claims wherein, is characterized in that, described second fluid room is suitable for only receiving fluid from first fluid room.

24., according to fluid treating plant in any one of the preceding claims wherein, is characterized in that, the processed connection of fluid between the first and second fluid chamber exclusively obtains by least one nozzle assembly.

25. according to fluid treating plant in any one of the preceding claims wherein, comprises the deflector means being placed in the second indoor further, to help the forward direction mixing minimizing processed fluid.

26. 1 kinds of methods processing fluid, described method comprises following step:

Limit the first and second fluid chamber;

Pending fluid is sent into first fluid room;

By being suitable at least one nozzle assembly of described fluid and gas and vapor permeation from first fluid room effluent fluid; And

Fluid is entered second fluid room from least one nozzle assembly, to be further processed in second fluid indoor.

27. 1 kinds for by the spray nozzle device of pending fluid distrbution between first fluid room and second fluid room, described spray nozzle device comprises:

First jet assembly, it comprises the first fluid pipeline extended between the first and second fluid chamber, and wherein first fluid pipeline comprises the first fluid port providing and be communicated with first fluid room; And

Second nozzle assembly, it comprises the second fluid pipeline extended between the first and second fluid chamber, and wherein second fluid pipeline comprises the second fluid port providing and be communicated with first fluid room;

It is characterized in that, the first and second fluid ports have different height relative to the bottom of first fluid room, so that indoor with different fluid header range operation first and second nozzle assemblies at described first fluid.

28. spray nozzle devices according to claim 27, is characterized in that, described first and second nozzle assemblies are suitable for promoting mixing of gas and described fluid.

29. spray nozzle devices according to claim 27, is characterized in that, described first and second nozzle assemblies promote that gas is entrained into described fluid.

30. spray nozzle devices according to any one of claim 26 to 28, it is characterized in that, each in described first and second nozzle assemblies comprises further fluid circuit, and this fluid circuit is suitable for allowing the gas from source of the gas to be communicated to a part for respective nozzle assembly.

31. spray nozzle devices according to any one of claim 26 to 29, is characterized in that, each of described first and second nozzle assemblies comprises the excretory duct of the fluid issuing being limited to second fluid room.

32. spray nozzle devices according to claim 30, is characterized in that, the excretory duct of described first and second nozzle assemblies is configured to set up rotational flow in the second indoor.